Manual Reference Pages - NG_RFC1490 (4)

CONTENTS

The
rfc1490
node type performs protocol encapsulation, de-encapsulation, and
multiplexing according to RFC 1490 (which has since been updated by RFC 2427).
This particular type of encapsulation is often used on top of frame relay
DLCI channels.

The
downstream
hook is used to transmit and receive encapsulated frames.
On the other side of the node, the
inet
and
ppp
hooks are used to transmit and receive raw IP frames and PPP frames,
respectively.
PPP frames are transmitted and received according to
RFC 1973; in particular, frames appearing on the
ppp
hook begin with the PPP protocol number.
The
ethernet
hook can be used to transmit and receive Ethernet frames (without a
checksum) in RFC 1490s bridging format.

Typically the
inet
hook is connected to the
inet
hook of an
ng_iface(4)
node.